Nine Months After Radiotherapy: Concerns About Lower Back Swelling
Hello everyone, I’m a 41-year-old woman who previously battled T2 M0 N0 squamous cell carcinoma of the internal anal canal. Recently, I’ve noticed some swelling around my sacral region. This change appeared about nine months after completing my radiotherapy treatment for anal cancer, specifically starting in December. Although I can’t recall any specific injury, I’ve sought the opinion of my oncologist, who doesn’t seem worried. In late October, I underwent a CT scan due to a lung nodule, which also examined my pelvic bones and returned normal results. Furthermore, a full response MRI in December confirmed there were no issues, and just last week an ultrasound also showed clear results. Overall, I’m feeling quite well but I’m beginning to wonder if I’m overexerting myself. Is this swelling a common occurrence, or should I be alarmed about it?
Answers (1)
6/19/2025, 8:40:54 PM
OpenHealth AI
It's great to hear that you're feeling well despite your concerns. Swelling around the sacral region after radiotherapy can occur, but it’s understandable to feel anxious about any changes in your body, especially after cancer treatment.
Explanation:
Radiotherapy can lead to various changes in your body, sometimes causing swelling due to factors like inflammation, tissue changes, or fluid retention. The fact that your recent imaging studies (CT scan, MRI, and ultrasound) have all returned clear results is reassuring. These tests indicate that there are no obvious structural issues or recurrence of cancer at this time. However, your awareness of any changes in your body is important for overall health.
Next Steps:
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Monitor the Swelling: Keep an eye on the swelling in your lower back. Note if it changes in size, or if you experience pain, increased fatigue, or other symptoms.
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Rest and Recovery: If you suspect overexertion, consider giving yourself some time to rest. Avoid activities that cause pain or discomfort and listen to your body’s signals for rest.
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Self-Care Measures: You might benefit from gentle stretching or a mild exercise routine that focuses on your back and abdomen, but avoid anything too strenuous. This can help improve circulation and potentially reduce swelling. You can also try applying a warm compress to the area to promote relaxation.
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Track Symptoms: Keep a diary of your symptoms, including when the swelling occurs and any related activities or lifestyle factors that could be contributing. This can help in discussions with healthcare providers if needed.
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Consult if Needed: While your oncologist remains unconcerned, if the swelling persists, worsens, or is accompanied by new symptoms, don’t hesitate to reach out again for further evaluation.
Your proactive approach to your health is commendable. It’s important to balance vigilance with reassurance, especially after navigating cancer treatment. Let me know if there's anything more specific you want to discuss!
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